<template>

    <button @click="changeNode">修改节点颜色事件</button>

    <h2>添加自定义形状</h2>

    <div id="chart-diagram" style="background-color: whitesmoke; width: 1000px; height: 1000px;">
    </div>


</template>

<script setup>
    import {onMounted} from 'vue';
    import go from "gojs";

    let myDiagram = null;

    const getOkLinkTemplate = ($) => {
        return $(go.Link,

            $(go.Shape, {isPanelMain: true, stroke: "red", strokeWidth: 2}),
            $(go.Shape, {
                isPanelMain: true,
                stroke: "green",
                strokeWidth: 5,
                name: "PIPE1",
                strokeDashArray: [5, 80]
            }),$(go.Shape, { toArrow: "OpenTriangle", stroke: "red" })
        );
    }
    const changeNode = () => {
        var data = myDiagram.model.findNodeDataForKey("Delta");
        // 这个方式可以更新
        if (data !== null) myDiagram.model.setDataProperty(data, "color", "red");
    }

    const init = () => {

        const $ = go.GraphObject.make

        myDiagram = new go.Diagram("chart-diagram", {
            'grid.visible': true, // 显示网格
            'clickCreatingTool.archetypeNodeData': {category: 'Normal', text: '新节点', notice: ''}, // 双击新建节点(可以写入节点的默认信息)；；
            'toolManager.hoverDelay': 100, // tooltip提示显示延时
            'toolManager.toolTipDuration': 10000, // tooltip持续显示时间
            allowMove: true, // 允许拖动画板
            allowDragOut: true, // 允许拖拽节点
            allowDelete: true, // 允许删除节点
            allowCopy: true, // 允许复制节点
            allowClipboard: true, // 允许粘贴节点

        });

        myDiagram.nodeTemplate =
            $(go.Node, "Auto",
                $(go.Shape,
                    {
                        figure: "RoundedRectangle",
                        fill: "white"
                    },  // default Shape.fill value
                    new go.Binding("fill", "color")),  // 把数组中的color绑定到Shape的fill上
                $(go.TextBlock,
                    {margin: 5},
                    new go.Binding("text", "key"))  // // 把数组中的key值绑定到TextBlock的text上
            );


        myDiagram.linkTemplateMap.add("judgeLink", getOkLinkTemplate($));

        var nodeDataArray = [
            {key: "Alpha", color: "lightblue"},
            {key: "Beta", color: "yellow"},  // 通过parent指定父亲指向自己
            {key: "Gamma", color: "orange"},
            {key: "Delta", color: "lightgreen"}
        ];
        var linkDataArray = [
            {from: "Alpha", to: "Beta", color: "blue", thick: 2, category: "judgeLink"}
        ];

        var linkArr = [

            {from: "Delta", to: "Gamma", color: "blue", thick: 2, category: "judgeLink"},
            {from: "Beta", to: "Delta", color: "blue", thick: 2, category: "judgeLink"},

        ];
        myDiagram.model = new go.GraphLinksModel(nodeDataArray, linkDataArray);


        // linkArr.map((r) => {
        //     myDiagram.model.addLinkData(r)
        //
        // })

        myDiagram.model.addLinkDataCollection()
        myDiagram.model.addLinkDataCollection(linkArr)

    };


    onMounted(() => {
        init();
    });


</script>

<style scoped>

</style>